MT46H8M32LFB5-6 IT:H Micron Technology Inc, MT46H8M32LFB5-6 IT:H Datasheet - Page 79

• Manufacturer Part Number: MT46H8M32LFB5-6 IT:H
• Description: DRAM Chip DDR SDRAM 256M-Bit 8Mx32 1.8V 90-Pin VFBGA Tray
• Manufacturer: Micron Technology Inc
• Type: DDR SDRAMr

Specifications of MT46H8M32LFB5-6 IT:H

• Density: 256 Mb
• Maximum Clock Rate: 166 MHz
• Package: 90VFBGA
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 1.8 V
• Maximum Random Access Time: 6.5|5 ns
• Operating Temperature: -40 to 85 °C
• Organization: 8Mx32
• Address Bus: 14b
• Access Time (max): 6.5/5ns
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 120mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

Figure 42: WRITE-to-PRECHARGE – Interrupting
PDF: 09005aef834bf85b
256mb_mobile_ddr_sdram_t36n.pdf - Rev. H 11/09 EN
Command
Address
t
t
t
DQSS (NOM)
DQSS (MIN)
DQSS (MAX)
DQS
DQS
DQS
DQ
DQ
DQ
CK#
DM
DM
DM
CK
1
5
6
5
6
5
6
WRITE
Bank a,
Col b
T0
Notes:
2
t
t
t
DQSS
DQSS
DQSS
1. An interrupted burst of 8 is shown; two data elements are written.
2. A10 is LOW with the WRITE command (auto precharge is disabled).
3. PRE = PRECHARGE.
4.
5. DQS is required at T4 and T4n to register DM.
6. D
D
IN
t
WR is referenced from the first positive CK edge after the last data-in pair.
NOP
T1
D
IN
IN
b = data-in for column b.
D
D
IN
IN
T1n
D
IN
D
IN
NOP
T2
T2n
79
t
WR
NOP
T3
256Mb: x16, x32 Mobile LPDDR SDRAM
4
Micron Technology, Inc. reserves the right to change products or specifications without notice.
T3n
(a or all)
PRE
T4
Bank
3
Don’t Care
T4n
T5
NOP
©2008 Micron Technology, Inc. All rights reserved.
WRITE Operation
Transitioning Data
T6
NOP